Home / 268,245.33-402,430.23-78,698.04

Finding the Fourth Proportional to 268,245.33, 402,430.23 and 78,698.04

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Solution

The fourth proportional to 268,245.33, 402,430.23 and 78,698.04 is: 118,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,245.33 : 402,430.23 = 78,698.04 : x
  2. Step 2: Convert to fraction form
    268,245.33/402,430.23 = 78,698.04/x
  3. Step 3: Cross multiply
    268,245.33x = 402,430.23 × 78,698.04
  4. Step 4: Simplify right side
    268,245.33x = 31,670,470,337.75
  5. Step 5: Solve for x
    x = 31,670,470,337.75/268,245.33
  6. Step 6: Final answer
    x = 118,065.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.